Improvement in leather-scouring machfnes



`DAVID i?. BURDON, on N Ew YORK, n. Y.

IMPROVEMENT IN LEATHER-scouRlNG MACHINES..

Specification forming part of Letters Patent N0. 105,419, dated July 19,1870.

To all 'whom'z't may concern:

Be it known that I, DAVID P. BURDON, of

the city of New York, in the county and State of New York, have inventeda new and Improved Leather-Securing Machine 5 and I do hereby declarethat the following is afull, clear, and exact description thereof, whichwill en able others skilled inthe artto make and use the same, referencebeing had to the accompany ing drawing, forming part of thisspecification.

Figure lrepresents a side view, partly in section, of my improvedleather-scouring machine. Fig. 2 is a detail face view of the Salm e.

Similar letters of reference indicate corresponding parts.

rllhis invention relates to a new machine for dressing, setting out, andscouring hides, skins, and leather; and has for its object to facilitatethe operation by providing for a perfect adjustment of all parts tohides varying in thickness and quality.

rlhe invention consists, chiefly, in the use of a rotating scouring andrubbing cylinder, which is hung in a pendulum-frame, so that it can beswung any suitable distance from the bed that supports the hide tobedressed.

The invention consists, also, in a new way 4 of securing therubbing-stones in the rotating cylinder by dovetails formed on thestones.

p The same will thereby be firmly held and readily removed.

The invention consists,also, in the use of an elasticbed, which willallow the rubber to yield to uneven parts of the leather, preventing thetearing or cutting of projecting poris hung in brackets B, that aresuspended from the ceiling of the room in which the apparatus is to beput up. y

O is a swinging frame,[suspended from the shaft A, and carrying at itslower end a hori- Zonta-l shaft, D. A belt, E, connects the pulleys a Vbon the shafts A D, for the .purpose of transmitting motion to thelatter, the shaft A receiving rotary motion from suitable mechanism. K

Upon the shaft D is mounted a cylinder or disk, F, which carries therubbing or scouring implements, in form of stones G and brushes H, or ofstones or brushes only, as may be desired.

Each stone is made of triangular or other suitable form, and isdovetailed into a dovetail groove of the cylinder F, being lockedtherein by a wedge or key, c. The stones or brushes work over a bed, I,which is secured to a suitable fixed frame, J, and which I prefer tomake of sheet metal or other suitable yielding material.

The bed I is secured so that one end is con siderably higher than theother, so it will bag under the cylinder.

For the purpose of increasing the elasticity of the bed, I prefer toplace a soft covering, d, made of india-rubber or other elasticmaterial, over the same.

The hideor skin to be dressed is placed upon the bed, and then theroller is drawn against it, so that the stones or brushes will rub thesurface of the leather and properly dress the same. l

By means of the swinging frame the press# ure against the leather can beregulated at will, and suitable workmanship consequently produced.

The apparatus for setting the swingframe consists of toggle-levers L,which are, by a rod, e, connect-ed with a-'treadle, f, or other suitablelever. By swinging said treadle or lever the dressing-roller can bemoved nearer to or farther from the bed.

The swinging frame can be made either rigid lum-frame, substantially asherein shown and 4. The toggle-levers L L, combined with the described.pendulum-frame C and lever f, for the pur- 2. The scouring-stonesdovetailed in the pose of adjusting the frame and roller,subsupporbing-cylinder and held therein, substantially as described.

stantially as herein shown and described. DAVID P. BURDON.

3. The bed I of a leather-dressing machine, Witnesses: made elastic andseliadjusting, substantially GEORGE W. MABEE,

as herein shown and described. ALEX. F. ROBERTS.

